Timber Treatment & Preservation

Timber treatment is for structural wood that has stayed damp, such as joists, wall plates, and lintels found on a damp survey. It is for houses in England, Scotland, and Wales, not for furniture or floor sanding. Send the quote form or WhatsApp with what the wood is doing.

Timber Treatment & Preservation

Included and excluded

Timber Treatment & Preservation

What it is

Wood decays when it stays wet. The treatment preserves sound timber and replaces what has lost its strength, after the water is stopped.

  • Joist ends in damp walls
  • Wall plates and lintels
  • Surveyed with the damp, not instead of it
  • Materials that meet the relevant British Standard

Wet timber versus decoration

A stained skirting can be a symptom. The survey follows it into the joist or plate. Painting the face does not preserve the section that is doing the work.

  • Probe the timber, do not rely on the paint
  • Strength decided on site
  • Sistering or replacement where the section has gone
  • The damp path closed in the same job

What is included

Opening up where the survey cannot see, treatment of timber that can stay, replacement of timber that cannot, and the masonry damp repair that caused it.

  • Access cut only where needed
  • Preservative specified for the use
  • New timber isolated from wet masonry
  • Guarantee on the treatment named

What this is not

We do not treat dry, insect-damaged furniture, and we do not sand floors. Active woodworm in dry timber is a different specification from rot in wet timber.

  • Not floor sanding
  • Not antique restoration
  • Not a spray on timber that is still wet
  • Dry rot spread is the rot service

Signs on the building

Timber Treatment & Preservation

Joist ends

Ends built into a damp wall are the usual failure. The wall is repaired or the bearing is isolated, or both.

  • Softness at the pocket
  • The wall damp treated
  • Not a surface spray only

Wall plates

A plate on a damp sleeper wall or a wet concrete oversite stays at risk until the moisture under it is dealt with.

  • Solum ventilation
  • Damp masonry below
  • Replacement if the plate has gone

Lintels

A timber lintel in a wet wall can crush. The survey says whether it still carries the load.

  • Cracks in the brickwork above
  • Wet masonry around the end
  • Structural replacement where strength is lost

Cellar timbers

Below-ground damp and poor airflow keep joists at a high moisture content. Waterproofing and timber are quoted together when both are failing.

  • Moisture content, not just a stain
  • Air as well as a coating
  • Linked to the basement survey

Floorboards

A springy or musty board is opened where the joist cannot be seen from above. Boards are lifted by agreement.

  • Not assumed from the smell
  • Lifted where the survey needs to see
  • Replaced or refixed as the quote says

Air under the floor

Blocked air bricks keep a void damp. Clearing them is part of the job when the void is the problem. A spray in a closed void is not.

  • Vents checked
  • The moisture source still stopped
  • Not a spray and leave

How It Works

Rot treatment without stopping the damp fails again. The source is part of the survey.

1

Find how the timber got wet

Rot treatment without stopping the damp fails again.

2

Open up only where the timber is hidden

We lift or cut what we need to see the section that carries load.

3

Keep sound timber, replace the rest

Preservative is for timber that still has its strength.

4

Separate new wood from wet masonry

A new joist end is not built back into a wall that is still damp.

5

Treat the damp that caused it

The masonry repair is in the same quote when that is the source.

6

Guarantee the timber treatment specified

The treatment named in the written quote carries a 30-year guarantee.

Pricing Plans

The price moves with how much timber has lost its strength, how much has to be opened up, and the damp repair beside it. A spray price with no opening-up is not a comparable quote.

  • Number of joist ends or plates affected
  • Opening up and making good
  • Replacement timber and bearings
  • The damp repair that sits beside the wood

Timber Treatment & Preservation FAQs

Questions that decide whether this is the right job.

Only if the survey finds an insect problem that needs a specification. Wet rot and insect attack are not the same visit by default.

No. Timber that stays wet will decay again. The quote includes the moisture source.

No. We repair and preserve structural timber. Floor finishing is a different trade.

By opening up and testing the section, not from a stain on the ceiling below.

Book a damp survey

Tell us the floor, whether it follows rain, and the postcode. The quote follows the survey.

Get Your Free Quote

Related damp work

Areas we cover

Surveys run in Kent, Cardiff, and Glasgow, and in the other counties and towns on the areas page.

Kent, Cardiff, and Glasgow

Contact Us

Name the room, the floor, and what the wall is doing. WhatsApp takes the same details.

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